Laser line scanner, 3D scanner + 2D laserscannerProfile scanner and 2D/3D laser profile sensors and und profile measurement

22

Real time measurement

The important parameters for a point sensor are the measuring frequency and the point reso-

lution. In case of a laser line scanner the number of pixels is an additional key specification,

therefore all these parameters are important specifications which have to be considered for

each application. In addition to the profile resolution (measurement points along the laser line)

the data rate or frame rate is the most important parameter. The profile sensor scanCONTROL

2700 series delivers 64,000 points per second or 100 line frames per second with an absolute

guaranteed consistent and reliable rate.

Measuring principle

The scanCONTROL 2700 laser line scanner

uses the triangulation principle for a two di-

mensional acquisition of a height profile of va-

rious target surfaces. By using special lenses,

a laser line is generated and projected onto the

target surface. A high-quality optical system

projects the diffusely reflected light of this laser

line back onto a highly sensitive sensor matrix.

In addition to the calibrated distance informa-

tion (z-axis), the controller, integrated into the

sensor head, uses this matrix image to calcula-

te the position along the laser line (x-axis). This

generates calibrated matched measurement

values (z, x) which are than output as a precise

line profile. Regardless of the position or ang-

le the profile data are absolute calibrated data

sets in a two-dimensional coordinate system

that is fixed in respect to the sensor. By moving

the object or traversing the sensor, it is possib-

le to obtain a precise three dimensional image

of your target as well as an intensity image at

the same time.

Compact concept with integrated controller

The scanCONTROL 2700 combines technolo-

gy and performance in one device offering an

scanCONTROL: Compact 2D/3D profile sensor with integrated controller

integrated solution with no external controller

with the smallest and most compact design

possible. The wiring of this device can be kept

at a minimum since the power can be supplied

via the FireWire IEEE1394a interface. This is

a real advantage for applications with multip-

le sensors or in case the sensor needs to be

mounted on a moving platform.

Compact design with integrated controller

64,000 data points per second

100Hz profile frequency at full resolution

Large stand off

Real time capability with synchronisation for multiple scanners

Excellent price/performance ratio

Calibrated 3D data and intensity image

Measuring principle of the laser line triangulation

X/Z value

z-axis

x-axis

23

Resolution

The resolution is a key performance specification for any sensor. In case of a single point trian-

gulation sensor this value is related to the height reading of one single measurement point of a

target. It defines the smallest possible change in height at one location which can be detected

by the sensor. For the laser line triangulation sensor the resolution specification is more com-

plex. Usually not one single point is evaluated but a measurement is interpreted or derived from

multiple points or an image respectively. There is a clear difference between the point resolution

which determines the reproducibility of individual points and the resolution achieved for the indi-

vidual measurement application, which uses image analysis and data processing to determine

a desired value. For example, in case of a height measurement, a reference line can be fitted

through several points, where the distance of this line measured shows a much higher resolution

compared to the height reading of an individual point. For the laser line triangulation sensor this

specification is referred to as “reference resolution”.

Interfaces for the individual

software solution

scanCONTROL provides ideal conditions for re-

alising your own software and system solutions.

The sensor provides up to 64,000 calibrated

measuring points/sec. in real-time via FireWire

without requiring any additional hardware. The

software development environment (SDK) inclu-

ded with the delivery together with the function

library (LLT.dll) provides the basis of the com-

munication which allows maximum flexibility

and best performance via direct integration with

many common programming languages (e.g.

C/C++). The synchronous operation of several

sensors is possible due to the high bandwidth

of the FireWire bus.

System unit for complex calculations of profile data: scanSYSTEM

64,000 measuring/sec.

control

supply voltage

Flexibility thanks to FireWire

a c

Multiple scanner applications

scanCONTROL 2700 allows you to operate multiple systems at the same time. Due to the compact

design, the easy wiring and the economic cost, building a system, where several sensors are requi-

red to be cascaded, is an easy task and opens new opportunities for more complex applications.

The scanCONTROL concept

The basic software package included in the delivery makes it possible to record, store and visualise

online or offline as well as exporting an MS-Excel compatible format by using ICONNECT and 3D-

View. In addition, scanCONTROL 3D-Data offers even more options for the data export in order to

process the data further with any imaging analysis software. The free SDK software development

kit offers maximum programming flexibility for almost any programming platform. Having direct

access to all the possible features and settings of this sensor the possibilities for new applications,

where conventional sensors fail, are endless. The version scanCONTROL 2X10 offers a plug & play

solution for standard measurement tasks. Profile analysis threads are downloaded directly into the

controller where the images are processed and the sensor outputs ready to go sensor data such

as: step, angle, height, bead, width, gap.

The modular scanSYSTEM that also includes a system unit is used when measured values are

logged, calculated, analysed and made available via the Ethernet. In addition, scanSYSTEM pro-

vides the option to calculate the profile data of several sensors. Comprehensive software tools are

available for more complex 2D/3D measuring tasks. The determination, calculation and evaluation

of the measured values is then carried out using a system unit which is housed in a top hat rail

casing suitable for industrial applications.

44 scanCONTROL: Compact 2D/3D profile sensor with integrated controller

Edge

Belt edge

Angle

Bend angle

Step

Level

Profile

Recording the profile with scanCONTROL demo software

A profile consists of maximum 640 measurement points representing calibrated values for X, Z

and intensity. These points are taken simultaneously across the entire line and made immedia-

tely available for the real time evaluation of the profile. The demo software included in the scope

of delivery allows to tune, display, store, load and export the profiles in a MS-Excel compatible

format.

Weld seam detectionGlue inspectionProfile monitoring

Circle measurementRoundness measurement

Groove width and depthRobot guidancePositioning

Welding pearls inspection

Gap detection

Surface detectionPlanarity measurement

Peak measurermentPeak counting

Thickness measurement

Edge detection Edge measurement Edge counting

Angle measurementParallel measurement

Width measurement

Applications

The scanCONTROL 2700 allows the acquisition of line profile data, 3D

image as well as the intensity image in real time. Unique absolute calibra-

ted profile data (x, z) guarantee true and accurate measurement for many

applications where conventional vision sensors fails.

Regardless of the position, angle and ambient conditions, the profiles are

output as absolute calibrated data sets in a two – dimensional coordina-

te system which is fixed in respect to the sensor. This unique capability

and compact design allows the sensor to be successfully used in dyna-

mic, robotic and online applications without compromising accuracy. By

moving the object or the sensor, it is possible to obtain a precise three

dimensional image of your target as well as an intensity image.

45

Model scanCONTROL 2700-25 scanCONTROL 2700-100

Measuring range x-axis standard measuring range 25mm 100mm

Start of measuring range 90mm 350mm

End of measuring range 115mm 450mm

Start of extended measuring range approx. 85mm 300mm

End of extended measuring range approx. 125mm 600mm

Linearity ±0.2% FSO (3s)

Resolutionx-axis 640 points/profile

reference resolution 4µm 15µm

Profile frequency 100Hz (standard measuring field)

Light source semiconductor laser approx. 658nm, 20° aperture angle

standard 2M: 10mW, E≤55W/m2; optional 3B: 20mW reduced 10mW

Cable lengthup to 10m without hubs and full data rate,

up to 50m with hubs and/or restrictions

Protection class IP 64

Operating temperature 0°C to 50°C

Storage temperature -20°C to 70°C

Output/Input 1x firewire, laser off (optional), 1x RS422 programmable

(interface or synchronisation or encoder input)

Display 1x laser, 1x power/error/status

Supply 8-30VDC, 500mA

Electromagnetic compatibility (EMC)

CE EN 50081-2-living quarters

EN 50082-2-industrial sector

Galvanic isolationOnly at RS422, no isolation of 24V-supply, internal circuit and FireWire bus.

If isolation necessary, external 24V-DC-DC-converter required

Weight appr. 700g appr. 850gFSO = Full scale outputSMR = Start Measuring Range, MR = Midrange, EMR = End of Measuring Range*according to a singular averaging across the measuring field (640 points)Measuring object: Micro-Epsilon standard object (metallic, diffusely reflecting material)

The scanCONTROL 2700 laser unit operates

with a semiconductor laser featuring a wavelength

of approx. 658nm (visible/red) and a 10mW

optical output (laser class 2M)

LASER RADIATIONDo not stare into the

beam or view directly with optical instruments

Class 2M Laser ProductIEC 60825-1:2001-11

P≤10mW; E≤55W/m2; λ=658nm

66 scanCONTROL: Compact 2D/3D profile sensor with integrated controller

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Extended measuring range

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Extended measuring range

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88

High performance sensors made by Micro-Epsilon

Sensors and systems for displacement,

position and dimension

Eddy current sensors

Optical and laser sensors

Capacitive sensors

Inductive sensors

Draw-wire sensors

Optical micrometers

2D/3D profile sensors

Image processing

Sensors and measurement devices

for non-contact temperature sensors

Online instruments

Handheld devices

Measuring systems for quality control

for plastic and film

for tire and rubber

for web material

for automotive components

for glass

Mod

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Standard scope of delivery scanCONTROL 2700

- scanCONTROL 2700

- Interface cable and supply cable (4.5 m)

- scanCONTROL demo software

- scanCONTROL 3D-View software

- Development environment for integrating the sensor into C/C++ programs

Connecting cable for power supply and interfaces

Sensor connector IEEE1394a FireWire (6-pole)

External power supply cable

RS422 Interface cable

Sensor connector

Sensor connector

FireWire interface cable with integral power supply

~46

~12

~46

~12

~46

~12

~43

scanCONTROL: Compact 2D/3D profile sensor with integrated controller

info@micro-epsilon.comwww.micro-epsilon.com

info@micro-epsilon.co.uk www.micro-epsilon.co.uk

info@micro-epsilon.uswww.micro-epsilon.us